It is with Othman's son Orkhan that the Ottoman Empire really begins. He threw off his nominal allegiance to the Sultan [of Iconium], though he still bore only the title of Emir. And in his time the Ottomans first made good their footing in Europe. But while his dominion was still only Asiatic, Orkhan began one institution which did more than anything else firmly to establish the Ottoman power. This was the institution of the tribute children. By the law of Mahomet … the unbeliever is allowed to purchase life, property, and the exercise of his religion, by the payment of tribute. Earlier Mahometan rulers had been satisfied with tribute in the ordinary sense. Orkhan first demanded a tribute of children. The deepest of wrongs, that which other tyrants did as an occasional outrage, thus became under the Ottomans a settled law. A fixed proportion of the strongest and most promising boys among the conquered Christian nations were carried off for the service of the Ottoman princes. They were brought up in the Mahometan faith, and were employed in civil or military functions, according to their capacity. Out of them was formed the famous force of the Janissaries, the new soldiers who, for three centuries, as long as they were levied in this way, formed the strength of the Ottoman armies. These children, torn from their homes and cut off from every domestic and national tie, knew only the religion and the service into which they were forced, and formed a body of troops such as no other power, Christian or Mahometan, could command. … While the force founded by Orkhan lasted in its first shape, the Ottoman armies were irresistible. But all this shews how far the Ottomans were from being a national power. Their victories were won by soldiers who were really of the blood of the Greeks, Slaves, and other conquered nations. In the same way, while the Ottoman power was strongest, the chief posts of the Empire, civil and military, were constantly held, not by native Turks, but by Christian renegades of all nations. The Ottoman power in short was the power, not of a nation, but simply of an army." E. A. Freeman, The Ottoman Power in Europe, chapter 4. The name of Yeni Tscheri, which means 'new troops,' and which European writers have turned into Janissaries, was given to Orchan's young corps by the Dervish Hadji Beytarch." _Sir E. S. Creasy, History of the Ottoman Turks, chapter 2._ TURKS: A. D. 1360-1389. The conquests in Europe of Amurath I.